Churn.



B. R. BROWN.

APPLICATION FILED APR. 13, 1911.

1,033,667. PatentedJuly23.1912. I

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CHURN.

T 0 all whom 2'25 may concern:

Be it known that I, BENJAMIN R. BROWN, citizen of the United States, residing at Chilhowee, in the county of Johnson and State of Missouri, have invented new and useful Improvements in Churns, of which the following is a specification.

The present invention relates to certain novel and useful improvements in churns, and has particular application to a double reversible dasher churn adapted to be operated by hand or by power.

In carrying out my invention it is my purpose to provide a churn embodying the desired features, simplicity, durability and efficiency in operation, and one wherein the churning operation will produce butter much more rapidly than with the ordinary churn now on the market.

Still a further object of my invent-ion is to provide a churn having a plurality of dashers operating in reverse directions, the shaft of one of said dashers being sleeved or enveloped by the shaft of the other.

dasher, bot-h the dashers being simultaneously operated from a common source of power.

I also aim to provide a construct-ion of churn wherein the operating parts may be readily and easily removed from the churn body or receptacle, and replaced therein as may be desired.

With the above recited objects and others of the similar nature my invention consists in the construction, combination and arrangement of parts set forth in and falling within scope of the appended claim.

In the accompanying drawings: Figure l is a View in side elevation of a churn embodying my invention, one wall of the churn body or receptacle being removed to show the churning mechanism; Fig. 2 is a vertical longitudinal sectional view taken through the churn dashers and the shafts thereof; Fig. 3 is a perspective view of a blade of one of the dashers, and showing the cut-away or recessed portion of the blade designed to fit over shaft block.

Referring now to the accompanying drawings in detail, the letter A designates the body or receptacle of the churn, which may be of any suitable form, size or material. Arranged at the top edges of this receptacle, and oppositely disposed are threaded studs 1 designed to project through the ex- Specification of Letters Patent.

Application filed April 13, 1911.

Patented July 23, 1912.

Serial No. 620,791.

tending ends 2 of the dasher yoke 3, said yoke being secured to the studs through the medium of the nuts 4. The yoke 3 is preferably formed of a single piece of metal, as shown in Fig. 1, and having the relatively short vertical extending arm 5, the crank arm or shaft 6 being journaled in this arm and the arm 7 of the U-shaped section 8 of the yoke. The inner end of this crank arm carries a vertically disposed gear 9 adapted to mesh with the oppositely rotated bevel gears 10 and 11, the bevel gear 10 which in the present instance in the upper gear being sleeved on the solid shaft or rod 12, while the lower bevel gear 11 is fast on the tubular shaft 13, through which the solid shaft extends. Mounted upon the tubular sleeve and fast therewith is a rectangular block 14 to which is secured the approximately semi-circular dasher blades 15 arranged angularly relative to the block. By reference to Fig. 3 it will be seen that each of the blades is cut-away or recessed as at 16, the end walls of recess being beveled or inclined as at 17, so that when in position relative to the block the blades will fit snugly against the same, while the fastenings such as the screws or pins 18 may be driven through the ends of the blades and into the blocks. Similarly the lower end of the solid rock or shaft, which projects through the tubular shaft or sleeve carries a blade block 19, to which is angularly secured a number of rectangular dasher blades, in the present instance four in number and indicated by the numeral 20. These blades are also cut-away or recessed as at 21 and fit against the carrying block in the manner described for the semi-circular blades of the upper dasher.

From the above description taken in connection with the accompanying drawings, the construction and the manner of employing my improved churn will be readily apparent. When the parts are assembled as shown in Fig. 1, the revolution of the crank arm or shaft will actuate the bevel gears and causes the solid shaft or rod carrying the lower dasher to turn in one direction, while the tubular rod or sleeve carrying the upper dasher will rotate in the opposite direction. Owing to this construction, and to my peculiar and advantageous construction of dasher blades, and the angular arrangement of the same relatively to the shafts and to each other, the mass .Within the churn blades, each of the second mentioned blades Will be rapidly and thoroughly churned with a minimum expenditure of time and labor.

What I claim is:

A churn comprising a receptacle, inner and outer dasher shafts mounted in said receptacle, a plurality of angularly arranged rectangular blades carried by said inner shaft, a plurality of substantially semi-circular angularly arranged blades carried by said outer shaft above the first mentioned being recessed to provide beveled shoulders, and means for rotating said shafts in opposite directions.

In testimony whereof I afiiX my signature in presence of tWo Witnesses.

BENJAMIN R. BROWN.

Witnesses:

G. L. 0. Guns, H. J. GAINEs.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C." 

